Belt-shipping mechanism.



No. 844,653! PATENTED FEB. 19, 1907.

G. BERRY.

BELT SHIPPING MECHANISM.

APPLIUATION FILED MAR.13,1908.

Witnesses RQ U TsI/mofw- UNTTED STATES PATENT @lFlFlCE.

CHESTER BERRY, OF WORCESTER, MASSACHUSETTS, ASSIGNOR T O LAFAYETTE ROBBINS, OF WORCESTER, MASSACHUSETTS.

BELT-SHlPPlNG MECHANISM.

Specification of Letters Patent.

Patented Feb. 19, 1907.

Application filed March 13,1906. Serial No. 305,794.

To all whom it may concern.-

Be it known that I, CiIEsTER BERRY, a citizen of the United States, residing at \Vorcester, in the county of Worcester and Commonwealth of lllassachusetts, have invented a new and useful Improvement in a Belt-Shipping Mechanism, of which the following is a specificaion accompanied by drawings forming a part of the same, in which F igure 1 is a side View of my improved beltshifter applied to a counter-shaft, showing the belt-shipping mechanism in one position. Fig. 2 is a partial front view showing the beltshipping mechanism in its other posi.ion. F 3 is a detached and sectional view of one of the belt-eyes, and Fig. 1 is an end view of the sliding belt-shipper.

Similar reference letters and figures refer to similar parts in the different views.

My invention relates to a belt-shipping mechanism by means of which I am enabled to ship two belts by the same movement of the shipping mechanism, thereby allowing the use on a counter or other Silflfb of pulleys, thus obtaining different speeds of the shaft, as desired. By one movement of the shipping-lever I transfer a driving-belt from one light pulley to its corresponding loose pulley and aso transfer a driving-belt from another loose pulley to its corresponding tight pulley; and my invention consists in the construction and arrangement of parts as hereinafter described, and pointed out in the annexed claims.

Referring to the accompanying drawings, 1 and 2 denote hangers which support a countershaft 3. hlounted on the shaft 3 are the pulleys a et and 5 5, of which the pulleys A and 5 are tight on the shaft 3 and the pulleys l and 5 are loose on the shaft 3. From the stepped pulley 6 power is transmitted to the machine to be driven. Attached at either end to the hangers 2 is a bar 7, upon which the belt-eyes S and S slide by means of sleeves 9 and 9 Also sliding on the bar 7 between the belt-eyes 8 is a belt-shipper 10, actuated by a shipping-rod 11, sliding in the hangers 1 and 2 and moved by a shipping lever 12. The sliding belt-shipper 10 is pro vided with horizontal arms 13 and 13 each provided with a hook 14 at its outerend,litled to engage hooks 15 on latches 16 and 16 pivoted at 17 and 17 on the sleeves 9 9 The sleeves 9 and 9 are also provided with projec.ions 18, which are litted LO limit the rotation of the latches 16 and 16 on their pivots 1.7 and 17.

In Fig. l the belt-eye S is shown in position. to hold its belt on the right pulley l, by which the shaft will be driven. and the other belt-eye S is in position to hold its belt on the loose pulley 5. The hook i l on the horizontal arm 13 is in engagement Willi the hook 15 on the pivoted la.ch 16 on the sleeve 9. By a suit able movemem of the shipping-lever 12 the belt-shipper 10 is drawn on the bar 7 in the direction of the belt-eye 8. As the hooked arm 13 is in engagement with the hook on the latch 16 movement of the beltshipper 1.0 will draw the belt-eye 8 along the bar 7 and ship the belt from the tight pulley & .to the loose pulley l. lleld in the bar 7 are sop-pins 19 and 20, which limit the outward movement of the belt eyes, and also pins 21 and 22, which enter tliO slo.s 23 and 21 in the sleeves 9 9, thereby preventing further movement of the belt-eyes t oward each 0.1101. These pins insure the accurate position of the l)()lLS upon LllC pulleys i 4:" 5 5. As the beltshipper 10 continues its movement toward the belt-eye 8 the pin 21 engages the curved surface 25 on the lalch 16 and raising the latch 16 disengages the hooks I l and 15, thereby allowing LllC belt-shipper 10 to continue its movement toward the sleeve 9. Af.er one belt has been shifted from the tight pulley 1 10 the loose pulley 1 the belt-shipper 10 by its contact with the sleeve 9 pushes the belt-eye 8 along the bar 7 and shifts the driving-belt from the loose pulley 5 to the tight pulley 5. This movement is continued until the sleeve 9 coinacs with the pin 20, and the change of speed of the counter-shaft 3 is complete, and lllO shipping mechanism has assumed the position shown in Fi 2. A movement of the shipping-lever 12 in the opposite direction by a reverse of the above-described movement s ships the belt again upon the loose pulley 5 and the tight pulley 4 and causes the device to assume the position shown in Fig. 1.

The sleeves 9 and 9, carrying the belteyes, are recessed, as shown in Fig. 3, and a spring 26 is held in the recess and bears against the bar 7 to produce a frictional engagenient between the sleeves 9 and 9 and the bar 7, thereby securing an even movement of the sleeves and preventing their displacement by jarring.

Fig. 4 shows an end view of the belt-shipper 10, which is provided with a longitudinal groove 27 to allow the belt-shipper 10 to pass over the rigid pins 21 and 22 in its movement between the sleeves 9 and 9 I have shown my invention as applied to a counter-shaft containing a pair of tight pulleys and their accompanying loose pulleys; but it will be obvious that the number of pulleys may be increased as desired.

I claim-'- 1. In a belt-shipping mechanism, the com bination with a shaft and two pairs of pulleys thereon, each pair comprising a tight and a loose pulley, of a bar parallel with said shaft, a pair of sleeves capable of sliding on said bar, and a pair of belt-eyes carried by said sleeves, each belt-eye being adapted to shift a belt on one pair of pulleys, a sliding beltshipper on 'said bar between said sleeves, means for sliding said shipper on said bar, pivoted latches on said sleeves, there being hooks on said sliding shipper adapted to en' gage said latches, and means for automatically disengaging said latches from said hooks at a predetermined movement of the sleeves.

2. In a belt-shipping mechanism, the combination with a shaft and two pairs of pulleys, each pair comprising a tight and a loose pulley, of a bar parallel with said shaft, sleeves slidable on said bar, belt-eyes carried by said sleeves, each belt-eye being adapted to shift a belt on one pair of pulleys, a sliding belt-shipper on said bar between said sleeves, means for sliding said shipper on said bar, hooks projecting from opposite sides of said belt-shipper, pivoted latches on said sleeves, and means for automatically disengaging said latches from said hooks at a predetermined movement of the belt-eye.

3. In a belt-shipping mechanism, the. combination with two pairs of beltpulleys, eachpair comprising a tight and a loose p lley, of a bar parallel with the axes of said belt-pulleys, sleeves capable of sliding on said bar, a

belt-eye carried by said sleeves for each pair of pulleys, latches pivoted on said sleeves, said sleeves having stops for limiting the movement of said latches, a sliding belt-shipper placed on said bar between said sleeves, hooks carried by said belt-shipper adapted to automatically engage said pivoted latches, and means for automatically disengaging said latches at a predetermined movement of said sleeves.

4. In a belt-shipping mechanism, the combination with a pair of belt-pulleys, of a belteye for shifting a belt on said pulleys, a sliding sleeve carrying said belt-eye, a bar parallel with the axes of said pulleys forming a way for said sleeve, a sliding belt-shipper on said bar, means for sliding said belt-shipper, a stop on said bar for limiting the movement of said sleeve in one direction as said sleeve is pushed by said belt-shipper, there being a hook on said belt-shipper and a pivoted latch on said sleeve, a stop on said bar for limiting the reverse movement of said sleeve, said pivoted latch having a beveled surface adapted to engage said stop and automatically release said latch.

5. In a belt-shipping mechanism, the combination with a pair of belt-eyes and slidable sleeves srpporting said belt-eyes, of a bar forming ways for said sleeves, a sliding beltshipper on saidbar between said sleeves, said belt-shipper being provided with hooks, pivoted latches on said sleeves adapted to engage said hooks, a pair of stops on said bar to limit the sliding movement of said sleeves away from each other, a second pair of stops on said bar to limit the sliding movement of said sleeves toward each other, said second pair of stops being arranged to contact with said pivoted latches and release them from the belt-shipper to check the motion of each belt-shipper before the sliding movement of the other belt-shipper br gins.

Dated this 7th day of March, 1906.

CHESTER BERRY.

WVitnesses:

PENELOPE CO BERBACH, RUFUs B. FOWLER. 

